Phonograph



1,615 114 Jan. 18, 7 N C DURAND PHONOGRAPH Filed August 17 1923 INVENTOR business or commercial phonograph of the Patented Jan. 18, 1927.

UNITED STATES PATENT OFFICE.

NELSON G. DURAND, 0F NEWARK, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO THOMAS A EDISON. INCORPORATED, OF WEST ORANGE, NEW JERSEY, A COR- PORATION OF NEW JERSEY.

PHONOGRAPH.

Application filed August 17, 1 923.

' My invention relates to phonographs and more particularly to phonographs of the business or commercial type, and in some aspects is an improvement. on the invention disclosed in Patent No. 1,297,466, granted March 18, 1919, to Newman H. Holland and entitled Speaking tube support for phonographs. i

A phonograph of the business or commercial type is usually equipped with a speaking tube comprising a mouthpiece connected to the phonographic recorder by a convenient length of rubber or metallic flexible tubing. One of the objects of my invention is to provide in a phonograph an improved construction and arrangement comprising means preferably constituting a support for holding the speaking tube conveniently positioned when the latter is not in use, for opcrating or controlling the switch or other tion will be hereinafter more fully described and claimed. I

In order that my invention may be more clearly understood, attention is directed to the drawing accompanying and forming a part of this specification, and in which:

Figure 1 represents a perspective, fragmental view of a phonograph having a preferred embodiment of my invention applied thereto;

Figure 2 is an enlarged view in side elevation, partly broken away. of the phonograph shown in Fig. 1, with thecover or top plate in raised or open position; and

Figure 3 is a fragmentalrview similar to Fig. 2 showing the speaking tube support locked in position to maintain the switch in circuit-opening position.

. Referring to the drawing, reference character 1 represents the cabinet or casing of a Serial No. 657,918.

Edison type and 2, the cover of said cabinet,

which is hinged to the cabinet as indicated at 10. Extending upwardly from the cover or top plate 2 and preferably formed integrally therewith are suitable standards 2' in which is rotatably mounted a pulley 3 and the axle of the mandrel or rotatable record support 4. As is common inthe art, the pulley 3 is driven from an electric'motor 6 or other suitable driving means, as by a belt 7, to thereby impart rotation to the mandrel 4 and the record tablet 5 mounted thereon. The motor 6 is suitably supported from the cover or top plate 2 within the cabinet 1, the circuit of this motor being'controlled by a switch 8 having a reciprocatory contact member 9 suitably biased, as by a spring, to its raised position, as shown in Fig. 2, in which the switch is closed. It is thus apparent that-the switch 8' is a normally on switch. A plate 11 is suitably secured, as by means of screws, on the top of the cover 2, this plate being provided at its rear side with an upstanding bracket 12. Reference ,jects beyond the casing 1 and cover 2, is

curved as indicated at 14, to form arest for the speaking tube and is preferably covered with a sheath 15 of soft rubber or other suitable material, which preventsthe mouthpiece of the speaking tube from being scratched or marred by the support and which also tends to prevent the mouth-piece from slipping off the rest.

The arm 13 or support is so arranged that the under side thereof is engaged by the spring-pressed contact member 9, the

weight of this arm-being such that when the speaking tube is disengaged from the rest 14 thereof, said contact member will move upwardly tocircuit-closing position and thereby move the arm upwardly about its pivot to the raised position shown in Fig. 2. The plate 11 is provided at'its forward edge with an upstanding inverted U-shaped portion or, yoke 18'which straddles the arm 13 and acts not only as a stop to limit the upward movement of the arm with respect to the cover 2 but as a" guide for said arm a button reventing any appreciable lateral merea trumpet-shaped mouth-piece tint ll 90' rubber or flexible metallic tubing 17 connected at one end to said mouth-piece and at its other to the recorder (not shown). The weight of the mouth-piece 16 is 'such that when the same is disposed on the rest 14 of the arm 18 the latter will be moved about its pivot against the action of the spring-pressed contact 9, to its depressed position as shown in Fig. 1. In this movement of the arm 13 the contact member 9 will 'be forced downwardly against the action of its spring to circuit-opening 'posi tion.

In order that the support 13 may be held in its depressed position either when the speaking tube is intentionally removed from the rest 14 or accidentally displaced therefrom a member 19 is slidably mounted on the support 13 for adjustment to and from a position beneath" the base of the yoke 18. This member 19 isin the form of having a shank 20 which extends through a slot 21 formed in support 13. Mounted on the shank 20 between the bottom of the support 13 and a head 23 formed on the lower end of the shank is a metallic spring washer 22 which co-acts with the support to frictionallyhold the member 19 in any adjusted position. When the member 19 is beneath the base of yoke 18 it coacts with the latter to hold or lock the support 13 and the contact member 9 in their depressed positions.

In case the phonograph described is being used at frequent intervals the member 19 is adjusted to a position in which it will not engage the stop 18, that is to the position shown in Fig. 2 in which the shank 20 thereof engages the outer end wall of slot 21 in thearm 13'. If the operator now desires to dictate he removes the mouthpiece 16 from-the rest 14, whereupon the spring of the spring-pressed contact member 9 moves the latter and the support 13 upwardly to their raised positions. Such movement of contact'member 9 effects the closing of the circuit of motor 6, which through the belt 7 and pulley 3 will thereupon impart rotary movement to the record support 4. The operator then proceeds with his dictation and upon the conclusion thereof disposes the mouthpiece 16 on the rest 14. The mouth-piece when so disposed, moves the support 13 and contact member 9 downwardly against the action of the spring of the contact member, to their de pressed positions, shown in Fig. 1. and thereby efifects the openingof the circuit of motor 6. The motor 6 and the rotatable record support 4 will thereupon come to -w.ill be obvious top plate 2 to inspect the motor 6 or other eete disposed within the eehinet 1, p to enthee eneh pelts tttttthhht he repent ht replacement, this may be easily and COIIVGII- iently accomplished by lifting upwardly on the rest 14:, or on that portion of support 13 which projects outwardly beyond the cabinet 1, either when the member 19 is in the position shown in Figs. 1 and 2 or in locking position as shown in Fig. 3. It

that upon so lifting upwardly on the support 13 either the latter or the member 1.9, according to whether such member is in the position shown in Fig. 2 or in the position shown in Fig. 3, will co-act with the base of the yoke 18 to effect upward movement of the cover about its hinge 10.

In case the phonograph is not to be used for a considerable period the member 19 is moved to position beneath the yoke of 18 to thereby lock the support 13 and the contact member 9 in their depressed positions,

as shown in Fig.3. This insures the contact member being held in circuit-opening position so as to prevent operation of the motor 6 with the consequent wastage of current and wear ot the parts, in the event that the speaking tube is removed or accidentially displaced from the rest 14:.

lVhile I have described a preferred embodiment of my invention, it is to be understood that the same is subject to numerous changes and modifications without departure from the spirit of the invention'or the scope of the appended claims. I

Having now described my invention, what I claim as new and desire to protect by Letters Patent, is as follows:

1. In a phonograph, driving mechanism, means for controlling the operation of the same, said means being movable to render said driving mechanism operative and inoperative and being biased to a position to render such mechanism operative, a support for a speaking tube movable by the latter when the same is applied theretoto a position in which it is adapted-to hold said controlling means so positioned as to render said driving mechanism inoperative, and means comprising a member adjustable on said support to lock the latter in such position when the speaking tube is removed therefrom, substantially as described.

2. In a phonograph, driving mechanism, a cabinet having a movable cover, means for controlling said driving mechanism comprising a movable support for a speaking tube, and guiding means for said sup- 1 port mounted on said cover, said guiding means being arranged to limit themovement of said support \with respect to said cover in one direction and to cooperate with snirl sflhfifili} upon movement of the latter ment of said cover, substantially as described.

3. In a phonograph, driving mechanism, a cabinet having a movable cover, means for controlling said driving mechanism. comprising a support for a speaking tube mounted on said cover for pivotal movement, and a member mounted-on said cover embracing said support, said member acting to limit the upward movement of said support about its pivot and cooperating therewith to effect opening .movement of said cover upon such upward movement of the support, substantially as described.

4. In a phonograph, driving mechanism, means for controlling the operation of the same, a cabinet having a movable cover, a support for a speaking tube movably mounted on said cover and arranged to actuate said controlling means, a guide for said support having means limiting movement of said'support with respect to the cover in one direction and cooperating with the support when the latteris moved in such direction to effect opening movement of said cover, substantially as described.

5. In a phonograph, a cabinet having a movable cover, phonograph mechanism carried by said cover, means movable to positions to render said mechanism operative :and inoperative and biased to one of said positions, a support for a speaking tube movably mounted on said cover and adapted to effect movement of said means to the other of said positions, and a guide for said support mounted on said cover and having means limiting the movement of said support with respect to said cover in one direction and cooperating with said support when the same is moved in such direction to effect opening movement of said cover, substantially as described. a

6. In a phonograph, a cabinet having'a movable cover, a rotatable record support mounted on said cover, electric driving mechanism for said record support support ed from said cover within said cabinet, a switch movable to positions to effect the opening and closing of the circuit of said mechanism, a support for a speaking tube movably mounted on said cover and arranged to control said switch, and a guide for said support mounted on said cover, said guide having means limiting the movement of said support with respect to the cover in one direction and adapted to cooperate with the support when the latter is moved in such direction to efiect opening movement of the ing the upward movement of said arm with respect to said cover and adapted to cooperate with said arm when the latter is moved upwardly to eifect opening movement of said cover, substantially as described.

8. In a .phonograph, a cabinet having a hinged cover, movable phonograph mechanism, a switch for controlling said mechanism comprising a reciprocatory contact member biased to circuit-closing position,.

an arm pivotally mounted on said cover engaging said contact member and normally.

held thereby in raised position, a stop for limiting upward movement of said arm with respect to the cover, and a member adjustable on said arm stop, said member when in said position coacting with said stop to hold the arm in depressed position and thereby said contact member in circuit-opening position, substantially as described. v

9. In a phonograph, a cabinet having a movable cover, electric motive mechanism, a switch. for controlling the circuit of said mechanism comprising a movable contact member biased to circuit-closing position, an arm movably mounted on said cover and engaging said contact member, a stop for limiting movement of said arm in one direction with respect to the cover, said contact member tending to hold said arm against said stop, said stop adapted to cooperate with said arm when the latter is moved in one direction to effect opening movement of said cover, and a member adjustable on said arm to a position beneath said stop, said member when adjusted to said position being effective to hold said arm in depressedposition and thereby said contact member in circuit-opening position, substantially as described.

This specification signed this 15th day of August, 1923. o.

NELSON C. DURAND.

to a position beneath said y 

